how to revert back to the previous commit code example

Example 1: how to revert a commit

git reset --soft HEAD@{1} # delete the last commit keeping the changes
git reset --hard HEAD@{1} # delete the last commit removing the changes

git push --force origin master # delete the last commit also on remote branch

Example 2: how to go to a previous commit state

# This will detach your HEAD, that is, leave you with no branch checked out:
git checkout 0d1d7fc32

Example 3: how to revert branch to old commit

git revert --no-commit 0766c053..HEAD
git commit